Can you expand on this a bit more? I've never heard about this. Are you saying when I go down to my local dispensary that it's owned by China? Or that the local bud is not actually local?
It all depends. I knew a grower in Oregon. They got into growing to provide for chronic pain sufferers (frequently fibromyalgia) since it is more difficult to get prescription pain medication in the US than marijuana.
A large portion of the grow ops are owned by Chinese groups. This is "common knowledge" in circles where people want to grow weed as a business, at scale, and scope out their competitors. This is their competition. The small local growers are not a competition anymore than your mom and pop business is competition to Amazon.
People find this surprising, but they've never stopped to ask themselves where did all that weed and infrastructure to grow it suddenly spring up from the moment it was legalized.